Melting Points of Alkanes Meiting point -Branched alkanes pack more 200 2 efficiently into a crystalline structure,so have higher m.p. 50 偶 0 even numbers od 3un -50 -100 odd numbers -150 -200 0 5 10 15 20 number of carbon atomsMelting Points of Alkanes ▪Branched alkanes pack more efficiently into a crystalline structure, so have higher m.p. 偶 奇